Ana completed 40% of her homework assignment.Her assignment contains 30 math problems. How many problems does she STILL need to
1 answer:
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Answer:
4Hz
Step-by-step explanation:
Standard form of a sine or cosine function,
y = acos(b(x+c))
where a is the amplitude, b is the value to find the period. and c is the phase shift.
Period = \frac{2\pi}{b}
From the equation given in the question,
We can see:
Amplitude = 3,
Period = \frac{2\pi}{8\pi} = 1 / 4
Phase Shift = 1 / 16
Now we want to find the frequency.
Frequency = 1 / Period
= 1 / (1/4)
= 4Hz
Answer:
Step-by-step explanation:
2)
x + 14 = -0.87
x + = -
x + = -
x = - -
x = -
3)
x -8 = 1.5
x - =
x = +
x =
x =
4)
x - = - 7
x - = -
x = - +
x = -
5)
- x = 6
=
+ x
-
= x
- = x
x = -
6)
-33.754 - x = 28.05
-33.754 - 28.05 = x
- 61.804 = x
x = - 61.804